Internal combustion engine



May Z'l, 1935.

. R. wAsElGE INTERNAL COMBUSTION ENGINE F'i-led Feb. 6, 1931 INVENTORCkarZes Pczmand Wasez e.

BY JN y ATTORNEY APatented May 21, 1935 PATENT' OFFICE mTERNALCOMBUSTION ENGINE Charles Raymond Waseige, Rueil, France, as-

signor to Eclipse Aviation Corporation, East Orange, N. J., acorporation of New Jersey Application February 6, 1931, Serial No.513,971

9 Claims.

This invention relates to internal combustion engines, and particularlyto means for maintaining a supply of suitable combustible or combus- 5tionsupporting fluid, for engines of this character.

An object of the invention is to provide in conjunction with an engineof the foregoing character having a supercharger or compressorassociated therewith, novel means for maintaining V the propertemperature of such fluid in the passage or: passages connecting suchsupercharger or compressor with the combustion chambers of theassociated engine.

Another object of the invention is to provide .5 novel temperatureregulating means which shall be particularly effective in regulating thetemperature of the combustion charge passing into the cylinders of anengine of' the air cooled type, although the invention is not confinedin its use or utility to engines of this type.

A further object is to provide novel cooling means which may beinterposed between the supercharger and the cylinders of the engine, andalso in certain instances between different cylinders, so as to obtainthe benefit of the cooling action ofthe air stream passing between suchsurfaces.

A further objectpf the invention is to provide means of the foregoingcharacter so positioned as to be most effective in cooling thecombustion controlling chargepassing from the supercharger to the enginecylinders without at the same time interfering withthe maintenance ofproper temperature in the cylinders themselves.

A further object of the invention is to provide novel cooling means ofthe foregoing character so constructed as to produce an acceleratingeffect upon the air stream through which the engine is moving, therebyincreasing the cooling action.

A further object of the invention is to provide cooling means of theforegoing character so constructed and disposed with respect to theengine as to obtain the maximum benefit from the cooling action of theair through which the engine is moving.

Other objects of the invention include the provision of a cooling sytemof the foregoing character which shall be inexpensive to manufacture,

install, and maintain, effective in its operation, and capable offunctioning as intended without in any way handicapping or interferingwith the efficient operation ofthe engine or of the craft propelled bythe engine.

Other objects and advantages to be derived from the use of thisinvention reside inthe con- (Cl. 12S-55) struction, arrangement, andmethod .of operation of the parts, and will become apparent uponinspection of the following description with reference to theaccompanying drawing. It is to be expressly understood, however, thatthe drawing is for the purpose of illustration and description only, andis not designed as a definition of the limits of the invention,reference being had for this purpose to the appended claims. l Y Inv thedrawing, wherein similar reference .characters refer to like ,partsthroughout the several views Fig. 1 is an elevation view partly'insection to a device constituting another embodiment of the invention.

Fig. 2 is a top plan view of the device shown in Fig. 1.

Fig. 3 is an elevation view 3-3 of Fig. 1. l

'Ihe invention is shown in connection with a 20 radial engine having acylinder 3 with cooling fins 2 and of the type employing a streamlinedouter cowl or envelope such as indicated at I6 in Fig. 3. Theoretically,this cowl or envelope should be annular in form with an external profilediiferent from the internalpprofile. In order to adapt this envelope tothe pur-` poses of the present invention, the envelope is open at itsfront end as indicated at 20 and also taken along the line at the rear,as indicated at 2| so that the air 30 flow through the collectors ormanifolds 5' and 'l' leading from the supercharger (not shown) to thecombustion chambers may be subject to the cooling action of the airstream through which the engine is moving. The forward and rear openingsin the cowl or envelope are preferably flared in order to increase thevelocity of the air flowing therethrough. To accomplish the maximumadvantage of the cooling action, a set of tubes 8 are preferablyprovided to connect the 40 member 23 into the collector 5' constitutingthe entrance portion of the collector 1', it being understood that theseelements could be made ofv suitable form to be enclosed within theenvelope. If it is desired to maintain separate now through thedifferentl cylinders, partitions I1 may be provided as indicated in Fig.3. l

From the foregoing, it will be apparent that the invention providesmeans for removing objectionable heat generated in the combustiblecharge 'by the compressing action in the supercharger and that a properworking temperature is maintained, thereby rendering it unnecessary todepend to such a large extent upon the cooling action of the air whichis in direct contact w'th 55 dial type employing a supercharger forcompressing the combustion supporting fluid and having a surroundingcowl for directing air toward the engine, the combination with saidsupercharger of a plurality of generally radially extending intakeconduits leading from said supercharger to the combustion chambers ofsaid engine, said cowl including an air conduit surrounding said firstnamed conduits and open at one end for the entrance of atmospheric airand at the other end for the discharge thereof, and means associatedwith said last named conduit for increasing the velocity of theatmospheric air owing through said conduit.

2. In an internal combustion engine of the type having a plurality ofradially disposed cylinders, in combination with a supercharger drivenby said engine, a plurality of intake conduits leading from saidsupercharger to said combustion chambers of said cylinders and anannular envelope surrounding said engine and said conduits havingopenings at its forward and rearward p0rtions for the entrance anddischarge and circulation of atmospheric air around and between saidintake conduits, at least one of said openings being flared forincreasing the air velocity through the opening.

3. In combination with a multicylinder radial internal combustion enginefor an airplane, a supercharger therefor, a plurality of supply conduitsleading generally radially from the supercharger to the cylinders, meansin each conduit including a plurality of tubes for subdividing the flowtherethrough, and the engine including spaced walls enclosing the tubesadapted to collect and direct atmospheric air around said tubes duringflight of the airplane, said deector comprising a conduit having anintake opening in the line of flight and a discharge opening rearward ofintake opening.

4. In combination with a radial engine, a hollow cowl member surroundingthe engine and spaced therefrom for collecting and directing an air flowpast the engine cylinders, and an intake conduit for the engine having aportion thereof arranged internally of the cowl.

5. In combination with a radial engine, a holan airI deilectorencircling` low cowl member surrounding the engine and spaced therefromfor collecting and directing an air ilow past the engine cylinders, anintake conduit for the engine having a portion thereof arrangedinternally of the cowl, and said portion including a plurality of tubesfor subdividing the ow through the intake conduit.

6. In combination with aradial airplane engine, an air deiiecting cowlsurrounding the engine for directing cooling air toward the engine, saidcowl comprising a pair of substantially circular members defining anannular space around the engine, and an intake conduit for the enginehaving a portion of its length within the annular space and in positionto be swept by the air current passing through the space.

'7. In combination with a radial airplane engine, an air deecting cowlsurrounding the engine for cooling the same, said cowl comprising a pairof Substantially circular members dening an annular space around theengine, an intake conduit for the engine having a portion of its lengthwithin the annular space and in position to. be swept by the air currentpassing through the space, and said cowl having an annular intakeopening in the line of ilight and a discharge opening rearward of theintake opening, at least one of said openings being flared to increasethe air velocity therethrough. y

8. In combination with a multicylinder radial engine, a cowl memberencircling the engine for cooling the same and spaced therefrom forcollecting and directing an airflow past the engine cylinders, said cowlincluding radially spaced walls, an intake conduit for each cylinderhaving a portion thereof arranged between said walls, said cowl havingflared intake and discharge openf ings therein arranged adjacent eachintake conduit-portion, said intake conduit portion that is arrangedbetween the walls including a plurality of individual tubes forsubdividing the ow, and means between the spaced walls for directingairflow through the cowl in a direction substantially axially of thecowl.

9. In combination with a multicylinder radial engine, a cowl memberencircling the engine for cooling the same and spaced therefrom forcollecting and directing an airflow past the engine cylinders,' saidcowl including radially spaced walls, an intake conduit for eachcylinder having a portion thereof arranged between said walls, said cowlhaving flared intake and discharge openings therein arranged adjacenteach intake conduit portion, and partitions bridging the space betweenthe walls arranged to direct the airflow from each intake opening pastthe intake conduit portion to the corresponding discharge opening.

CHARLES RAYIVIOND WASEIGE.

